刘建华,李永星,于美,李松梅,陈高红,于海洋

• 1:北京航空航天大学材料科学与工程学院空天先进材料与服役教育部重点实验室
• 2:中国航天科工集团第六研究院三八九厂

摘要(Abstract)：

研究了沸水封闭、醋酸镍封闭和电压加载下己二酸铵封闭对LY12铝合金阳极氧化膜耐蚀性的影响。通过场发射扫描电镜(FE-SEM)和电化学阻抗谱(EIS)对三种无铬封闭方法处理后铝合金阳极氧化膜的表面微观形貌和耐蚀性进行了研究。结果表明:封闭处理可以有效地闭合阳极氧化膜的微孔,提高氧化膜耐腐蚀性能。电压加载下己二酸铵封闭可以有效缓解氧化膜的腐蚀。三种无铬封闭方法处理后的氧化膜耐腐蚀性能从小到大依次为:沸水封闭,醋酸镍封闭,电压加载下己二酸铵封闭。

关键词(KeyWords)： 阳极氧化膜;封闭;耐蚀性;EIS

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51001007)

作者(Author): 刘建华,李永星,于美,李松梅,陈高红,于海洋

DOI: 10.13289/j.issn.1009-6264.2011.10.020

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